/***********************************************************************
*
* Copyright (c) 2012-2025 Barbara Geller
* Copyright (c) 2012-2025 Ansel Sermersheim
*
* Copyright (c) 2015 The Qt Company Ltd.
* Copyright (c) 2012-2016 Digia Plc and/or its subsidiary(-ies).
* Copyright (c) 2008-2012 Nokia Corporation and/or its subsidiary(-ies).
*
* This file is part of CopperSpice.
*
* CopperSpice is free software. You can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
* version 2.1 as published by the Free Software Foundation.
*
* CopperSpice is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
*
* https://www.gnu.org/licenses/
*
***********************************************************************/

#ifndef QREADWRITELOCK_P_H
#define QREADWRITELOCK_P_H

#include <qglobal.h>
#include <qhash.h>

struct QReadWriteLockPrivate {
   QReadWriteLockPrivate(QReadWriteLock::RecursionMode recursionMode)
      : accessCount(0), waitingReaders(0), waitingWriters(0),
        recursive(recursionMode == QReadWriteLock::Recursive), currentWriter(nullptr) {
   }

   QMutex mutex;
   QWaitCondition readerWait;
   QWaitCondition writerWait;

   int accessCount;
   int waitingReaders;
   int waitingWriters;

   bool recursive;
   Qt::HANDLE currentWriter;
   QHash<Qt::HANDLE, int> currentReaders;
};

#endif
